Gravel Balcony + Case

Quick answer：

Gravel balconies are a popular design feature for their natural and rustic appeal. A 'case' in this context likely refers to a specific example or instance of such a design. In architectural design, a case study can provide insights into the materials, construction techniques, and aesthetic considerations involved in creating a gravel balcony. This might include details on drainage systems, structural support, and the overall integration with the building's exterior.